[ 13.587803][ T301] 8021q: 802.1Q VLAN Support v1.8 [ 16.879476][ T346] br1: port 1(vx100) entered blocking state [ 16.879966][ T346] br1: port 1(vx100) entered disabled state [ 16.881476][ T346] vx100: entered allmulticast mode [ 16.883910][ T346] vx100: entered promiscuous mode [ 16.884871][ T346] br1: port 1(vx100) entered blocking state [ 16.885226][ T346] br1: port 1(vx100) entered forwarding state [ 17.094510][ T348] br1: port 2(veth1) entered blocking state [ 17.094871][ T348] br1: port 2(veth1) entered disabled state [ 17.095182][ T348] veth1: entered allmulticast mode [ 17.097169][ T348] veth1: entered promiscuous mode [ 17.181399][ T40] br1: port 2(veth1) entered blocking state [ 17.181840][ T40] br1: port 2(veth1) entered forwarding state [ 17.342057][ T351] br1: port 3(veth2) entered blocking state [ 17.342413][ T351] br1: port 3(veth2) entered disabled state [ 17.342738][ T351] veth2: entered allmulticast mode [ 17.344758][ T351] veth2: entered promiscuous mode [ 17.424196][ T40] br1: port 3(veth2) entered blocking state [ 17.424535][ T40] br1: port 3(veth2) entered forwarding state [ 20.627654][ T398] br2: port 1(w1) entered blocking state [ 20.627889][ T398] br2: port 1(w1) entered disabled state [ 20.628140][ T398] w1: entered allmulticast mode [ 20.630368][ T398] w1: entered promiscuous mode [ 21.200160][ T405] br2: port 2(vx100) entered blocking state [ 21.200452][ T405] br2: port 2(vx100) entered disabled state [ 21.200741][ T405] vx100: entered allmulticast mode [ 21.203393][ T405] vx100: entered promiscuous mode [ 21.203911][ T405] br2: port 2(vx100) entered blocking state [ 21.204204][ T405] br2: port 2(vx100) entered forwarding state [ 21.915942][ T37] br2: port 1(w1) entered blocking state [ 21.916567][ T37] br2: port 1(w1) entered forwarding state [ 24.286458][ T445] br2: port 1(w1) entered blocking state [ 24.286698][ T445] br2: port 1(w1) entered disabled state [ 24.286923][ T445] w1: entered allmulticast mode [ 24.288832][ T445] w1: entered promiscuous mode [ 24.928993][ T452] br2: port 2(vx100) entered blocking state [ 24.929330][ T452] br2: port 2(vx100) entered disabled state [ 24.929617][ T452] vx100: entered allmulticast mode [ 24.931798][ T452] vx100: entered promiscuous mode [ 24.932347][ T452] br2: port 2(vx100) entered blocking state [ 24.932612][ T452] br2: port 2(vx100) entered forwarding state [ 25.631703][ T37] br2: port 1(w1) entered blocking state [ 25.631980][ T37] br2: port 1(w1) entered forwarding state [ 37.968519][ T11] vx100: left allmulticast mode [ 37.968893][ T11] vx100: left promiscuous mode [ 37.969309][ T11] br2: port 2(vx100) entered disabled state [ 37.971929][ T11] w1: left allmulticast mode [ 37.972180][ T11] w1: left promiscuous mode [ 37.972507][ T11] br2: port 1(w1) entered disabled state [ 38.426667][ T11] vx100: left allmulticast mode [ 38.426922][ T11] vx100: left promiscuous mode [ 38.427450][ T11] br2: port 2(vx100) entered disabled state [ 38.430105][ T11] w1: left allmulticast mode [ 38.430427][ T11] w1: left promiscuous mode [ 38.430916][ T11] br2: port 1(w1) entered disabled state [ 40.565226][ T574] br1: port 3(veth2) entered disabled state [ 40.638745][ T575] veth2: left allmulticast mode [ 40.639022][ T575] veth2: left promiscuous mode [ 40.639606][ T575] br1: port 3(veth2) entered disabled state [ 40.820724][ T577] br1: port 2(veth1) entered disabled state [ 40.889693][ T578] veth1: left allmulticast mode [ 40.889967][ T578] veth1: left promiscuous mode [ 40.890314][ T578] br1: port 2(veth1) entered disabled state [ 40.986667][ T579] vx100: left allmulticast mode [ 40.986903][ T579] vx100: left promiscuous mode [ 40.987805][ T579] br1: port 1(vx100) entered disabled state [ 41.930969][ T588] [ 41.931107][ T588] ============================================ [ 41.931297][ T588] WARNING: possible recursive locking detected [ 41.931480][ T588] 6.13.0-rc5-virtme #1 Not tainted [ 41.931633][ T588] -------------------------------------------- [ 41.931812][ T588] ip/588 is trying to acquire lock: [ 41.931969][ T588] ffffffff8fdd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 41.932291][ T588] [ 41.932291][ T588] but task is already holding lock: [ 41.932528][ T588] ffffffff8fdd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 41.932839][ T588] [ 41.932839][ T588] other info that might help us debug this: [ 41.933062][ T588] Possible unsafe locking scenario: [ 41.933062][ T588] [ 41.933296][ T588] CPU0 [ 41.933416][ T588] ---- [ 41.933527][ T588] lock((netdev_chain).rwsem); [ 41.933677][ T588] lock((netdev_chain).rwsem); [ 41.933827][ T588] [ 41.933827][ T588] *** DEADLOCK *** [ 41.933827][ T588] [ 41.934038][ T588] May be due to missing lock nesting notation [ 41.934038][ T588] [ 41.934253][ T588] 2 locks held by ip/588: [ 41.934368][ T588] #0: ffffffff8fde7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 41.934646][ T588] #1: ffffffff8fdd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 41.934947][ T588] [ 41.934947][ T588] stack backtrace: [ 41.935141][ T588] CPU: 2 UID: 0 PID: 588 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 41.935371][ T588] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 41.935566][ T588] Call Trace: [ 41.935682][ T588] [ 41.935760][ T588] dump_stack_lvl+0x82/0xd0 [ 41.935918][ T588] print_deadlock_bug+0x40a/0x650 [ 41.936072][ T588] validate_chain+0x5bf/0xae0 [ 41.936239][ T588] ? __pfx_validate_chain+0x10/0x10 [ 41.936386][ T588] ? hlock_class+0x4e/0x130 [ 41.936536][ T588] ? mark_lock+0x38/0x3e0 [ 41.936652][ T588] __lock_acquire+0xb9a/0x1680 [ 41.936809][ T588] lock_acquire.part.0+0xeb/0x330 [ 41.936957][ T588] ? blocking_notifier_call_chain+0x50/0x90 [ 41.937139][ T588] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 41.937326][ T588] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 41.937475][ T588] ? trace_lock_acquire+0x14c/0x1f0 [ 41.937620][ T588] ? lock_acquire+0x32/0xc0 [ 41.937772][ T588] ? blocking_notifier_call_chain+0x50/0x90 [ 41.937957][ T588] down_read+0x9f/0x340 [ 41.938077][ T588] ? blocking_notifier_call_chain+0x50/0x90 [ 41.938256][ T588] ? __pfx_down_read+0x10/0x10 [ 41.938401][ T588] ? __lock_release+0x103/0x460 [ 41.938552][ T588] ? netconsole_netdev_event+0x2c1/0x620 [ 41.938696][ T588] ? __pfx___lock_release+0x10/0x10 [ 41.938850][ T588] blocking_notifier_call_chain+0x50/0x90 [ 41.938997][ T588] __netdev_upper_dev_unlink+0xd9/0x220 [ 41.939149][ T588] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 41.939336][ T588] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 41.939484][ T588] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 41.939669][ T588] ? rtnl_is_locked+0x15/0x20 [ 41.939819][ T588] netdev_upper_dev_unlink+0x71/0xa0 [ 41.939974][ T588] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 41.940154][ T588] ? netconsole_netdev_event+0x2c1/0x620 [ 41.940305][ T588] ? mutex_is_locked+0x1c/0x60 [ 41.940452][ T588] ? rtnl_is_locked+0x15/0x20 [ 41.940598][ T588] ? netdev_master_upper_dev_get+0x13/0x120 [ 41.940788][ T588] vrf_device_event+0x78/0xe0 [vrf] [ 41.940940][ T588] notifier_call_chain+0xcd/0x150 [ 41.941093][ T588] blocking_notifier_call_chain+0x66/0x90 [ 41.941242][ T588] unregister_netdevice_many_notify+0xa7b/0x1580 [ 41.941422][ T588] ? hlock_class+0x4e/0x130 [ 41.941571][ T588] ? mark_lock+0x38/0x3e0 [ 41.941681][ T588] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 41.941866][ T588] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 41.942053][ T588] ? kfree+0xf3/0x330 [ 41.942169][ T588] ? vlan_vid_del+0x310/0x5e0 [ 41.942323][ T588] ? vlan_vid_del+0x310/0x5e0 [ 41.942471][ T588] rtnl_dellink+0x348/0xa40 [ 41.942618][ T588] ? __pfx_rtnl_dellink+0x10/0x10 [ 41.942780][ T588] ? find_held_lock+0x2c/0x110 [ 41.942938][ T588] ? __lock_release+0x103/0x460 [ 41.943095][ T588] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 41.943252][ T588] ? __pfx___lock_release+0x10/0x10 [ 41.943402][ T588] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 41.943551][ T588] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 41.943696][ T588] ? __pfx_rtnl_dellink+0x10/0x10 [ 41.943844][ T588] rtnetlink_rcv_msg+0x712/0xc10 [ 41.943995][ T588] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 41.944147][ T588] ? hlock_class+0x4e/0x130 [ 41.944305][ T588] ? mark_lock+0x38/0x3e0 [ 41.944417][ T588] ? __lock_acquire+0xb9a/0x1680 [ 41.944564][ T588] netlink_rcv_skb+0x130/0x360 [ 41.944710][ T588] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 41.944860][ T588] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 41.945009][ T588] ? netlink_deliver_tap+0x13e/0x340 [ 41.945157][ T588] ? netlink_deliver_tap+0xc3/0x340 [ 41.945311][ T588] netlink_unicast+0x44b/0x710 [ 41.945459][ T588] ? __pfx_netlink_unicast+0x10/0x10 [ 41.945604][ T588] ? find_held_lock+0x2c/0x110 [ 41.945756][ T588] netlink_sendmsg+0x723/0xbe0 [ 41.945905][ T588] ? __pfx_netlink_sendmsg+0x10/0x10 [ 41.946053][ T588] ____sys_sendmsg+0x7ac/0xa10 [ 41.946212][ T588] ? __pfx_____sys_sendmsg+0x10/0x10 [ 41.946359][ T588] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 41.946552][ T588] ___sys_sendmsg+0xee/0x170 [ 41.946701][ T588] ? __pfx____sys_sendmsg+0x10/0x10 [ 41.946846][ T588] ? kasan_save_stack+0x34/0x50 [ 41.946995][ T588] ? kasan_save_stack+0x24/0x50 [ 41.947137][ T588] ? __kasan_record_aux_stack+0x8e/0xa0 [ 41.947284][ T588] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 41.947470][ T588] ? __x64_sys_close+0x7c/0xd0 [ 41.947626][ T588] ? do_syscall_64+0xc1/0x1d0 [ 41.947772][ T588] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.947954][ T588] ? __lock_acquire+0xb9a/0x1680 [ 41.948103][ T588] ? find_held_lock+0x2c/0x110 [ 41.948252][ T588] ? __lock_release+0x103/0x460 [ 41.948397][ T588] ? __virt_addr_valid+0x22b/0x430 [ 41.948550][ T588] ? __pfx___lock_release+0x10/0x10 [ 41.948703][ T588] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 41.948852][ T588] __sys_sendmsg+0x109/0x1a0 [ 41.949001][ T588] ? __pfx___sys_sendmsg+0x10/0x10 [ 41.949146][ T588] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 41.949340][ T588] do_syscall_64+0xc1/0x1d0 [ 41.949486][ T588] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.949667][ T588] RIP: 0033:0x7f203d40f9a7 [ 41.949826][ T588] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 41.950348][ T588] RSP: 002b:00007fffc5a0a838 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 41.950575][ T588] RAX: ffffffffffffffda RBX: 00007fffc5a0af60 RCX: 00007f203d40f9a7 [ 41.950803][ T588] RDX: 0000000000000000 RSI: 00007fffc5a0a8a0 RDI: 0000000000000005 [ 41.951020][ T588] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 41.951243][ T588] R10: 00007f203d2cdef8 R11: 0000000000000246 R12: 0000000000000002 [ 41.951464][ T588] R13: 0000000067792f37 R14: 0000000000498600 R15: 0000000000000000 [ 41.951696][ T588]